A narrow, flat and very elongated shell with a flat base, steep inner shell walls and widening narrow sides (type B). The outer strings run alongside the bowl opening. Six diagonally drilled string guide perforations. Six strings. One of the string cords [is] tied to a crosspiece behind an outer perforation, the other is wrapped around a stem extension carved in the longitudinal direction. Inside the bowl [is] a bound, semi-cylindrical wooden stick that runs the entire length. A spherical calabash resonator open at the bottom. A connecting cord running round the bowl below the string level. This is tied to a crosspiece inside the resonator. A carrying strap. from Ulrich Wegner: Afrikanische Saiteninstrumente, Staatliche Museen Berlin - SPK, 1984 (Appendix Object Catalogue)